One vertex per element, one color per generator, with an edge from x to x·s.
(1,2,5,10,6,11,16,9)(3,12,14,4,8,15,13,7)(17,18,21,24,23,26,22,25)(19,27,28,31,30,32,29,20)(1,3,6,8)(2,7,11,4)(5,13,16,14)(9,12,10,15)(17,18)(19,27)(20,28)(21,25)(22,24)(23,26)(29,31)(30,32)(1,4,6,7)(2,8,11,3)(5,15,16,12)(9,14,10,13)(17,19)(18,20)(21,28)(22,29)(23,30)(24,27)(25,32)(26,31)(2,9)(3,13)(5,16)(8,14)(10,11)(12,15)(17,20)(18,19)(21,32)(22,27)(23,31)(24,29)(25,28)(26,30) involution — undirectedA Cayley diagram is a choice, not a fact about the group. Another drawing of this group — in a book, or on a different generating set — may look nothing like this one.